Commodities
PrimaryCopper
TertiaryIron
Commodity typeM
Deposit
Deposit sizeN
Orebody formIRREGULAR
Ore controlContact Between Limestones And Alta Stock
Materials
Ore mineralsChalcopyrite, Malachite
GangueActinolite, Calcite, Chlorite, Diopside, Epidote, Garnet, Pyrite, Quartz
Other materialsMagnetite
Geology
Host rockQuartzite,Phyllite,Schist,Shale,Limestone,Dolomite · Ophir Shale;Fitchville Formation
Associated rockDiorite · Alta Stock;Intermediate Dike
StructureUinta-Cottonwood Arch, Cordilleran Hingeline. Sevier Overthrust Belt, East-Northeast Striking Faults
Tectonic settingBasin And Range-Colorado Plateau Transition Zone
AlterationOxidation, Contact Metasomatism
Economic & production
Development statusOccurrence
Identification
Deposit ID10014876
MRDS IDD011948
Alternate namesAlta Helena Group
RegionNA
Data scoreB
Coordinates40.58772, -111.60939
References
CALKINS, F.C., AND BUTLER, B.S., 1943, GEOLOGY AND ORE DEPOSITS OF THE COTTONWOOD-AMERICAN FORK AREA. UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 201.BUTLER, B.S., LOUGHLIN, G.F., HEIKES, V.C., AND OTHERS, 1920, THE ORE DEPOSITS OF UTAH: U.S. GEOLOGICAL SURVEY PROF. PAPER, NO. 111.BAKER, A.A. CALKINS, F.C., CRITTENDEN, M.D., JR., AND BROMFIELD, C.S., 1966, GEOLOGIC MAP OF THE BRIGHTON QUADRANGLE, UTAH: U.S. GEOLOGICAL SURVEY GEOL. QUAD. MAP GQ-534